[jira] [Resolved] (ARROW-8500) [C++] Use selection vectors in Filter implementation for record batches, tables

["Wes McKinney (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-8500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney resolved ARROW-8500.
---------------------------------
    Resolution: Fixed

Issue resolved by pull request 7475
[https://github.com/apache/arrow/pull/7475]

> [C++] Use selection vectors in Filter implementation for record batches, tables
> -------------------------------------------------------------------------------
>
>                 Key: ARROW-8500
>                 URL: https://issues.apache.org/jira/browse/ARROW-8500
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Wes McKinney
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.0.0
>
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> The current implementation of {{Filter}} on RecordBatch, Table does redundant analysis of the filter array. It would be more efficient in most cases (i.e. whenever there are multiple columns) to convert the boolean array into a selection vector and then use {{Take}}



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